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Using synthetic to clean a crankcase #5162615 07/16/19 02:26 PM
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NavyVet88 Offline OP
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2002 Ford Ranger Edge 3.0L 67k


So my ranger that I have made quite a few threads about lately is running much better now after having replaced bad plug wires and a coil pack. Went ahead and replaced the serp belt and tensioner as well as the idler pulley.

The truck had Castrol conventional 5w-20 and a purolator filter from a quick lube joint when I bought it from previous owner. First thing I did was changed oil and filter to Castrol Edge 5w-30 and a fram xg3600.
How long should I run this OCI before changing it again if I’m wanting to clean the motor internally? I know it will take more than one change to see most if any results.

Do I leave the CE in it for a full 5k then dump it or sooner? What do you guys think? I do want to do a black stone UOA but I think doing one on a “cleaning” OCI would be pointless because of possible contamination from prior conventional oils.

Last edited by NavyVet88; 07/16/19 02:28 PM.

2013 Honda Civic LX 1.8L 178k M1 HM 0w20 with Fram XG7317
2002 Ford Ranger Edge 3.0L 67k Castrol Edge 5w30 with Fram XG3600
Maintenance Technician by trade, working class for life.
Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162625 07/16/19 02:33 PM
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NavyVet88 Offline OP
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Edit: forgot to mention that I did run a can of seafoam through the gas tank and then filled with premium gas as well. So for sure won’t be sampling this OCI for black stone.


2013 Honda Civic LX 1.8L 178k M1 HM 0w20 with Fram XG7317
2002 Ford Ranger Edge 3.0L 67k Castrol Edge 5w30 with Fram XG3600
Maintenance Technician by trade, working class for life.
Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162628 07/16/19 02:35 PM
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oldhp Offline
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What did the oil look like when you drained it? Did you cut open the filter? I would run it at least 2000 miles depending on what the old oil looked like.


2018 RAM 1500 3.6/8 speed.
2019 Dodge Charger SXT 3.6/8 speed.
"When others cut you down, remember where they came from."
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Re: Using synthetic to clean a crankcase [Re: oldhp] #5162677 07/16/19 03:17 PM
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NavyVet88 Offline OP
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Originally Posted by oldhp
What did the oil look like when you drained it? Did you cut open the filter? I would run it at least 2000 miles depending on what the old oil looked like.


The oil looked decent for having been told by the previous owner that it had been changed approximately three months prior. Her driving conditions are/were unknown to me so I don’t know what it was exposed to during her time of ownership.


2013 Honda Civic LX 1.8L 178k M1 HM 0w20 with Fram XG7317
2002 Ford Ranger Edge 3.0L 67k Castrol Edge 5w30 with Fram XG3600
Maintenance Technician by trade, working class for life.
Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162687 07/16/19 03:37 PM
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I had a 2.3L 2005 Ranger that was a fleet vehicle for a few years before I purchased it in 2008. It had 80,XXX miles on it and tons of idle time when I purchased it, there was some build up under the covers and even in the oil pan more than likely due to cheap conventional + high idle time.

I ran regular old quaker state/formula shell and kreen for a few short 500-1000 ocis. It cleared everything up and the engine now has 3x as many miles on it than it did when I got it new.

After that, QSHM/later Defy was usually used unless something was on sale/closeout (Eneos, Amsoil, MC, I ran anything) it's a Ranger, it really isnt going to be to picky as those Ford/Mazda truck engines are built to run for a long time.

Find whatever 5w30 is on sale and roll with it. The Vulcan engine isnt going to care. I'd be more concerned with the electrical system/ignition system (plugs/coils/wires), transmission fluid, and differential fluid(s) maintenance than I would the oil choice at this age.

If needed, run a few cleaning cycles, RGT right now I believe still has its rebates going if you insist on a synthetic.

Last edited by GumbyJarvis; 07/16/19 03:39 PM.

2018 RAM 1500 SLT 5.7L
Schaeffers 5w20 - Carquest Red


Disabled US Army Vet
OEF 2013-2014
Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162691 07/16/19 03:42 PM
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demarpaint Offline
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I doubt a synthetic oil is going to clean up an engine by running it for a short OCI or two. IMO you need something to help it along if you're looking for fast results. Synthetic oil might do better cleaning than dino oil, but from what I've seen it needs help in problem or neglected engines.


God Bless Our Troops

Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162694 07/16/19 03:44 PM
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NavyVet88 Offline OP
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Yeah I have heard a lot about the Vulcans going 200k+ miles with routine maintenance and general upkeep. Just want to make sure I am doing this the best way that I can.


2013 Honda Civic LX 1.8L 178k M1 HM 0w20 with Fram XG7317
2002 Ford Ranger Edge 3.0L 67k Castrol Edge 5w30 with Fram XG3600
Maintenance Technician by trade, working class for life.
Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162698 07/16/19 03:45 PM
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RDY4WAR Offline
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Synthetic oil doesn't clean any more or less than conventional oil with the disclaimer of that being a broad statement and not including group V oils that aren't used as primary base oils. The only case where group V oils make up the primary base oil is Valvoline Premium Blue Restore which is ~50% polyol ester.

In order to properly clean up varnish and sludge, you need solvency. Group III and IV synthetic base oils have very low solvency, especially group IV, which is why they are often blended with group I or group V base oils to solubilize the additive package. The goal of oil is generally not to clean up dirty engines. It's to keep engines from getting dirty in the first place.

As far as additives are concerned, neutral detergents have more surface affinity and a better cleaning effect. Overbased detergents are much more concerned with acid neutralization than surface cleaning. Most of the detergents in engine oils are overbased.

Last edited by RDY4WAR; 07/16/19 03:51 PM.

"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Using synthetic to clean a crankcase [Re: demarpaint] #5162699 07/16/19 03:46 PM
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NavyVet88 Offline OP
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Originally Posted by demarpaint
I doubt a synthetic oil is going to clean up an engine by running it for a short OCI or two. IMO you need something to help it along if you're looking for fast results. Synthetic oil might do better cleaning than dino oil, but from what I've seen it needs help in problem or neglected engines.


Well this particular fill of Castrol Edge was put in just before I ran a can of sea foam through the gas tank. I know that sea foaming an engine requires a not so distant oil change due to possible carbon contaminants making its way down to the sump.


2013 Honda Civic LX 1.8L 178k M1 HM 0w20 with Fram XG7317
2002 Ford Ranger Edge 3.0L 67k Castrol Edge 5w30 with Fram XG3600
Maintenance Technician by trade, working class for life.
Re: Using synthetic to clean a crankcase [Re: RDY4WAR] #5162711 07/16/19 04:04 PM
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NavyVet88 Offline OP
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Originally Posted by RDY4WAR
Synthetic oil doesn't clean any more or less than conventional oil with the disclaimer of that being a broad statement and not including group V oils that aren't used as primary base oils. The only case where group V oils make up the primary base oil is Valvoline Premium Blue Restore which is ~50% polyol ester.

In order to properly clean up varnish and sludge, you need solvency. Group III and IV synthetic base oils have very low solvency, especially group IV, which is why they are often blended with group I or group V base oils to solubilize the additive package. The goal of oil is generally not to clean up dirty engines. It's to keep engines from getting dirty in the first place.

As far as additives are concerned, neutral detergents have more surface affinity and a better cleaning effect. Overbased detergents are much more concerned with acid neutralization than surface cleaning. Most of the detergents in engine oils are overbased.


What do you recommend I do then if I want to clean my engine? What products?


2013 Honda Civic LX 1.8L 178k M1 HM 0w20 with Fram XG7317
2002 Ford Ranger Edge 3.0L 67k Castrol Edge 5w30 with Fram XG3600
Maintenance Technician by trade, working class for life.
Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162714 07/16/19 04:08 PM
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GumbyJarvis Offline
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Originally Posted by NavyVet88
Originally Posted by RDY4WAR
Synthetic oil doesn't clean any more or less than conventional oil with the disclaimer of that being a broad statement and not including group V oils that aren't used as primary base oils. The only case where group V oils make up the primary base oil is Valvoline Premium Blue Restore which is ~50% polyol ester.

In order to properly clean up varnish and sludge, you need solvency. Group III and IV synthetic base oils have very low solvency, especially group IV, which is why they are often blended with group I or group V base oils to solubilize the additive package. The goal of oil is generally not to clean up dirty engines. It's to keep engines from getting dirty in the first place.

As far as additives are concerned, neutral detergents have more surface affinity and a better cleaning effect. Overbased detergents are much more concerned with acid neutralization than surface cleaning. Most of the detergents in engine oils are overbased.


What do you recommend I do then if I want to clean my engine? What products?


The right answer:
A severe service OCI and time.

----
Edit:
myself and others have had good results with Kreen, yes, but it isnt the "right answer" as most OMs do NOT suggest oil additives of any type

Last edited by GumbyJarvis; 07/16/19 04:09 PM.

2018 RAM 1500 SLT 5.7L
Schaeffers 5w20 - Carquest Red


Disabled US Army Vet
OEF 2013-2014
Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162717 07/16/19 04:09 PM
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NavyVet88 Offline OP
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10-4


2013 Honda Civic LX 1.8L 178k M1 HM 0w20 with Fram XG7317
2002 Ford Ranger Edge 3.0L 67k Castrol Edge 5w30 with Fram XG3600
Maintenance Technician by trade, working class for life.
Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162718 07/16/19 04:14 PM
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demarpaint Offline
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Originally Posted by NavyVet88
Originally Posted by demarpaint
I doubt a synthetic oil is going to clean up an engine by running it for a short OCI or two. IMO you need something to help it along if you're looking for fast results. Synthetic oil might do better cleaning than dino oil, but from what I've seen it needs help in problem or neglected engines.


Well this particular fill of Castrol Edge was put in just before I ran a can of sea foam through the gas tank. I know that sea foaming an engine requires a not so distant oil change due to possible carbon contaminants making its way down to the sump.

Any early oil change after the Seafoam would be a good idea. I personally have seen little to no proof of synthetic oil in and of itself cleaning up an engine with a few short OCI's. Maybe over a few years of use it might do some light cleaning. I agree with RDY4WAR.

I'd give Kreen a shot if you can get it.


God Bless Our Troops

Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162724 07/16/19 04:20 PM
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I recommend you change your oil at 5k and don't look back. Last vehicle I bought had 80k with sludge in oil filter. I carried it back to dealer and was told since I bought extended warranty to let that kick in then bring it back. I even showed him the car fax where the oil was supposably changed with plugs and brakes where nothing was done. I sent email to general manager and even went to talk to him so long story short I was incorrect and tech was correct. I ran short OCI with Maxlife for 1500 miles then changed oil at 5k or once a year with Pennzoil Platinum. I got 7 years with a small oil leak that developed and no engine problems. Only way to clean up a severely dirty engine is take it apart.


Tiger862
2018 Grand Caravan
Re: Using synthetic to clean a crankcase [Re: NavyVet88] #5162725 07/16/19 04:22 PM
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Do what I did in my LC.....it was badly neglected....to the point that it "burned" <---- not literally because there was no smoke (its diesel) 4 liters of top off oil in 6 months....its turbine was whining so loud that everyone said that it is toast

I bought HDEO (Shell rimula 10w40 R6M)....plus new filter.....did an normal OCI (10kks)...and voila! Oil consumption is gone ( HDEO loosened its oil rings).....turbo has normal whine for a non DPF car (EURO3 engine...straight pipe)....looks like that oil washed away grit around turbo bearings!

Just buy any HDEO that you like!!!

Last edited by Kamele0N; 07/16/19 04:24 PM.
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